AGSparqlDefaultDatasetBehavior.java
package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGSparqlDefaultDatasetBehavior {
@param
@throws
public static void main(String[] args) throws AllegroGraphException {
AllegroGraphConnection ags = new AllegroGraphConnection();
try {
ags.enable();
} catch (Exception e) {
throw new AllegroGraphException("Server connection problem", e);
}
AllegroGraph ts = ags.renew("sparqldefaultdataset", AGPaths.TRIPLE_STORES);
ts.registerNamespace("ex", "http://example.org/");
ts.addStatement("!ex:A", "!rdfs:subClassOf", "!ex:B");
ts.addStatement("!ex:B", "!rdfs:subClassOf", "!ex:C");
ts.addStatement("!ex:C", "!rdfs:subClassOf", "!ex:D", "!ex:ng1");
ts.addStatement("!ex:D", "!rdfs:subClassOf", "!ex:E", "!ex:ng2");
AGIndexAllTriples.indexAllTriplesWithTiming(ts);
String query = "select ?s ?p ?o {?s ?p ?o}";
SPARQLQuery sq = new SPARQLQuery();
sq.setTripleStore(ts);
sq.setQuery(query);
sq.setDefaultDatasetBehaviorAll();
AGSparqlSelect.doSparqlSelect(sq);
sq.setDefaultDatasetBehaviorDefault();
AGSparqlSelect.doSparqlSelect(sq);
ts.closeTripleStore();
ags.disable();
}
}
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